firefly-iii/database/seeds/TestDataSeeder.php

<?php

use FireflyIII\User;
use Illuminate\Database\Seeder;

/**
 * Class TestDataSeeder
 */
class TestDataSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        User::create(['email' => 'thegrumpydictator@gmail.com', 'password' => bcrypt('james'), 'reset' => null, 'remember_token' => null]);

    }
}